280966960 has 20 divisors (see below), whose sum is σ = 653248368. Its totient is φ = 112386752.

The previous prime is 280966957. The next prime is 280966969. The reversal of 280966960 is 69669082.

It is a happy number.

280966960 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×280966960² = 157884865223283200, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 280966960.

It is not an unprimeable number, because it can be changed into a prime (280966969) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1755964 + ... + 1756123.

Almost surely, 2^280966960 is an apocalyptic number.

280966960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

280966960 is an abundant number, since it is smaller than the sum of its proper divisors (372281408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

280966960 is a wasteful number, since it uses less digits than its factorization.

280966960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3512100 (or 3512094 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 46.

The square root of 280966960 is about 16762.0690846924. The cubic root of 280966960 is about 654.9654897032.

The spelling of 280966960 in words is "two hundred eighty million, nine hundred sixty-six thousand, nine hundred sixty".